WorksheetsUnit 4 pretest
Total questions: 20
Worksheet time: 18mins
Name
Class
Date
1.
What does it mean for a backyard ecosystem to have low diversity?
a)
The number of insect species is very low.
b)
There are more insect species present in the environment.
c)
The plant species outnumber the insect and other animal species.
d)
There are only a few different species of plants, animals, and insects.
2.
Which is an abiotic factor that often controls where the plants in an environment live?
a)
air
b)
birds
c)
amount of sunlight
d)
soil
3.
What part of an environment are a swarm of bees?
a)
ecosystem
b)
community
c)
niche
d)
population
4.
Which best describes the things that make up an ecosystem?
a)
All of the living things that interact with an organism being studied.
b)
The living and non-living things in the environment that surround an organism being studied.
c)
All the non-living things that interact with an organism being studied.
d)
The natural things in the environment that are affected by the organism being studied
5.
A desert environment nearly always has drought conditions, which of the following is the main abiotic feature to which plants there must have adapted?
a)
high winds
b)
limited number of pollinators
c)
lack of water
d)
low carbon dioxide levels
6.
In a wetland, such as a swamp, which of the following conditions would the plants there have to be adapted to living with in order to survive?
a)
wet soil
b)
few/poor nutrients
c)
low rainfall
d)
high temperatures
7.
A prickly pear cactus has spiny, flat joints and thick rounded stems that store water.
To which of the following environments is this type of plant adapted for living?
To which of the following environments is this type of plant adapted for living?
a)
wetland
b)
desert
c)
forest
d)
riverbank
8.
A snake has scaly skin to from drying out in a desert. A cactus has sharp spines and a thick stem that help keep water in. Which word traits like these that help an organism to survive?
a)
recessive traits
b)
adaptations
c)
instincts
d)
genes
9.
Organisms "live" or perform basic functions to stay alive. They also "survive", which means they compete for resources and protect themselves. In which of the following behaviors does a fly use a structure of its body to escape from predators?
a)
eating
b)
breathing
c)
flying
d)
sleeping
10.
Which of the following is a physical adaptation that helps a penguin live in an icy, wet environment?
a)
broad, flat, webbed feet
b)
wing-shaped flippers
c)
small spines to prevent water loss
d)
transparent eyelids that keep eyes moist
11.
The antlion is a slow-moving, nocturnal insect that digs a shallow pit in sandy soil. The antlion waits inside the pit for an ant to fall into the pit. It will then eat the ant. What type of adaptaion does this information suggest the antlion is relying on to catch it's food?
a)
behavioral adaptation
b)
physical adaptation
12.
Which of these is an example of an instinct that helps an animal survive?
a)
a skunk spraying a smelly mist for protection
b)
a raccoon learning to cross the road
c)
a dog learning to beg for food
d)
a human riding a bicycle
13.
Why are so many bacteria now able to resist antibiotics?
a)
Bacteria change their behavior.
b)
Bacteria adjusted their life cycles.
c)
The antibiotics have become weaker over time.
d)
A few bacteria resisted the antibiotics, survived, and multiplied.
14.
Which of these is the best example of how physical adaptations of an organism could help it to survive?
a)
Green snakes live in trees.
b)
Geese migrate in winter.
c)
Lion cubs learn how to hunt.
d)
Grass turns brown in the winter.
15.
What do thorns on a rose have in common with hooves on a bison?
a)
Both are structures that do not help the organism.
b)
Both are structures that help the organism survive.
c)
Both are behaviors that help the organism protect itself.
d)
Both are structures that help the organism adapt to a dry desert.
16.
An ecosystem is made up of both biotic and abiotic things. Which describes the biotic part of an ecosystem?
a)
Plants grow in soil.
b)
Animals breathe oxygen.
c)
All living things in that environment.
d)
Plants and animals that live in water.
17.
If you stand in the middle of an open field, you are standing among individual organisms, different species, populations, and communities. What makes up one of the populations in the field?
a)
all organisms of just one species
b)
the different communities living together in the ecosystem
c)
the communities that occupy the same niche
d)
all the organisms that live in a certain part of the field
18.
Temperature, water, soil and air are examples of what type of factors in an ecosystem?
a)
abiotic
b)
biotic
c)
invasive
d)
adaptive
19.
Invasive plants compete with native plants for resources. Which statement describes what will likely happen to the native plant that compete with fast-growing invasive plant species?
a)
Their number will decrease.
b)
Their number will stay the same.
c)
Their number will increase slightly.
d)
Their number will increase greatly.
20.
A human and an oak tree both have structures that function to help them live.
The skin is one of those structures for humans. A human's skin is most like which part of an oak tree?
The skin is one of those structures for humans. A human's skin is most like which part of an oak tree?
a)
acorn
b)
leaf
c)
root
d)
bark
100 %
